ctutils
v0.4.0 ExperimentalConstant-time utility library with selection and equality testing support targeting cryptographic applications. Supports `const fn` where appropriate. Built on the `cmov` crate which provides architecture-specific predication intrinsics. Heavily inspired by the `subtle` crate.
Quick Verdict
- ✓Actively maintained (updated 67d ago)
- !Pre-1.0: API may have breaking changes
- ✓Team maintained (2 owners)
- ✓Tiny footprint (29KB, 3 deps)
- ✓Permissive license (Apache-2.0 OR MIT)
Security
Deep Insights
593.9K downloads in the last 30 days (19.8K/day), up 65% from the previous period.
The primary maintainer publishes 215 crates. This suggests deep Rust expertise and long-term commitment to the ecosystem.
Only 3 direct dependencies. Lean dependency tree means faster builds and lower supply chain risk.
At 29KB, ctutils is lightweight. Small crate size correlates with focused, well-scoped functionality.
35% of releases have been yanked. Check version history before pinning.
Notable dependents include digest, crypto-bigint, sec1, universal-hash, hybrid-array. When high-quality crates choose ctutils, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
